Phase Technology CI-SURRX 6.5" 2-Way In-Wall Surround Speaker with Grille

6.5 inch 2-Way In-Wall Surround Speaker (Switchable Bipole/Dipole & Mono/Stereo) With Micro-Flange Grille. The CI-SURRX is the clear choice for Bipole/Dipole surround speaker in a home theater system. It utilizes a dual voice coil woofer with two tweeters.They can also be combined for two channels of input as a single stereo speaker. The weather-resistant design makes it an excellent choice for bathrooms, hot tubs, or outdoors. The CI-SURRX pairs with the entire Premier Collection.